Decorative gusset



FIG. 1 is a top perspective view of a decorative gusset;

FIG. 2 is a top view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left-side view thereof; and,

FIG. 6 is a right-side thereof.

The broken lines depict environmental subject matter only and form nopart of the claimed design.

The dot-chain lines illustrate a border of the claimed subject matterand form no part of the claimed design.

CLAIM The ornamental design for a decorative gusset, as shown anddescribed.